North Melbourne forward Jarrad Waite escaped with a $3000 sanction for his high bump on Western Bulldogs backman Jackson Trengove.

An incident involving Collingwood tagger Levi Greenwood, who targeted Dayne Zorko while the Brisbane midfielder was down on his haunches, was deemed to be of negligible impact and no charge was laid against the Magpie.

St Kilda defender Nathan Brown was earlier referred to the tribunal for his crude bump on Essendon's Adam Saad and is looking at a season-ending ban.